Please list only price comparison sites sorted by category. A price comparison site should have

• A search engine to allow you to search for products
• Price lists of matched product(s) in sorted order from multiple merchants

• Google Shopping NZ
• PriceMe
• PriceSpy
• Shopbot
• StaticIce
• GeekZone Shopping
• Shop Price

• NZ Campervan
• Trvago NZ
• SkyScanner - Budget & Full Service flight search good for Europe.
• Kayak
• Hotels Combined NZ
• JetCost
• Free Hotel Compare
• Adioso - Budget & Full Service flight search focused on Australia
• ITA Software Google's flight search allowing for more complex routing.

• Booko - Books and DVDs
• Book Finda - Books
• Luzme - E-books, includes price history.

• Vehicle Rental Prices
  • Discovery - Large Range of Cars
  • VroomVroomVroom - Cars and Caravans
  • Best Car Rental - Rental Car Comparison

• Fuel Prices
  • PriceWatch - Compares Different Petrol Stations Prices

• Power Switch - Consumer Power Company Comparing
• Switch - Compares Various Power Companies
• glimp NZ - Power Price and Power Company Comparison

• Whistle Out - Compare Phone Plans, Prices and Deals

• UFB - Compare UFB Pricing Plans
• glimp NZ - Compare Broadband Service Providers

• Health Insurance
  • Life Direct - Health Insurance Comparison by Trade Me

• Travel Insurance
  • 1Cover - Travel Insurance Comparing

• Bing Shoping
• CamelCamelCamel - Price history on Amazon (excludes ebooks)
• Bizrate
• Frugal Rouleur - Mainly searching for Bike parts some shoes and sport clothing as well
• Google Product Search
• My Simon
• Pricify.com - Get Alerted when Prices drop on any site

• Panda Check - Price Comparison on Chinese Buying Sites (eg. Aliexpress, Everbuying, DealExtreme)

• Geizhals Preisvergleich

• Price comparison services on Wikipedia